135355023 has 32 divisors (see below), whose sum is σ = 210439680. Its totient is φ = 85821120.

The previous prime is 135355019. The next prime is 135355043. The reversal of 135355023 is 320553531.

It is not a de Polignac number, because 135355023 - 2² = 135355019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135355043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130515 + ... + 131547.

It is an arithmetic number, because the mean of its divisors is an integer number (6576240).

Almost surely, 2^135355023 is an apocalyptic number.

135355023 is a deficient number, since it is larger than the sum of its proper divisors (75084657).

135355023 is a wasteful number, since it uses less digits than its factorization.

135355023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276 (or 1270 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 135355023 is about 11634.2177648521. The cubic root of 135355023 is about 513.4420798546.

The spelling of 135355023 in words is "one hundred thirty-five million, three hundred fifty-five thousand, twenty-three".